code: def _run_trainer_QPS_ddp(cls) -> None:
      main(
          [
              "--dataset_name",
              "random",
              "--random_user_count",
              "3000",
              "--random_item_count",
              "500000",
              "--random_size",
              "8000000",
              "--lr",
              "0.001",
              "--mask_prob",
              "0.2",
              "--weight_decay",
              "0.00001",
              "--train_batch_size",
              "8",
              "--val_batch_size",
              "8",
              "--max_len",
              "16",
              "--emb_dim",
              "128",
              "--num_epochs",
              "1",
              "--mode",
              "ddp",
          ]
      )
  
file_path: torchrec/examples/bert4rec/tests/test_bert4rec_main.py
imports: import os
  import tempfile
  import unittest
  import uuid
  import torch
  from torch.distributed.launcher.api import elastic_launch, LaunchConfig
  from torchrec import test_utils
  from ..bert4rec_main import main
label_desc: Use image node_id 1 for calling the MainTest obj's underlying member method code with example usage: obj._run_trainer_QPS_ddp(cls) without return types